On relativistic shifts of negative-ion resonances
KTH-Mechanics, Royal Institute of Technology, 10044 Stockholm, Sweden
Received: 11 September 2011
Received in final form: 18 October 2011
Published online: 11 January 2012
Results from a Dirac approach to electron- (neutral) atom resonance calculations are compared with those from nonrelativistic ones. A recently developed amplitude-phase method for the Dirac equations that is valid also in the non-relativistic limit is applied. The main conclusion is that significant energy differences are expected for long-lived resonances.
Key words: Atomic Physics
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag 2012